I started to play a record of Hawaiian music last night and noticed that the record was badly warped in one spot. It looked like it might have been left in sunlight years ago. I was thinking of trying heat to flatten the record — something like a clothes iron over a towel. Do any of you have any experience with trying to flatten a significantly warped record? What worked best? Is it possible to flatten the record and not still have a problem with integrity of the grooves or the needle being able to track adequately?